Home / 13,136.73-18,132.71-8,102.52

Finding the Fourth Proportional to 13,136.73, 18,132.71 and 8,102.52

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Solution

The fourth proportional to 13,136.73, 18,132.71 and 8,102.52 is: 11,183.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,136.73 : 18,132.71 = 8,102.52 : x
  2. Step 2: Convert to fraction form
    13,136.73/18,132.71 = 8,102.52/x
  3. Step 3: Cross multiply
    13,136.73x = 18,132.71 × 8,102.52
  4. Step 4: Simplify right side
    13,136.73x = 146,920,604.92
  5. Step 5: Solve for x
    x = 146,920,604.92/13,136.73
  6. Step 6: Final answer
    x = 11,183.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.